Mercer
- County:
- McLean County
- County Seat:
- No
- Area (mi²):
- 35.112
- State:
- North Dakota
Mercer is located in McLean County, North Dakota. Mercer has a 2025 population of 44 . Mercer is currently declining at a rate of -2.22% annually and its population has decreased by 0% since the most recent census, which recorded a population of 44 in 2020.
The median age in Mercer is 13.9 years: 13.5 years for males, and 0 years for females. For every 100 females there are 325.0 males.